Originally Posted by southpa
Lets say for all reasonable purposes that nobody here knows squat about LR shooting! Just as a help for me trying to select a caliber... Put all your prefferences aside for just a moment and look at it this way...
You have zero LR experience and you are presented with 2 calibers (assume you do not know what either calibers are for this scenario). keep in mind the shooter is competent and ethical and will not attempt shots outside his skill level
1-Muzzle velocity between the 2 calibers is a wash
2-1000yd velicity almost a wash
3-KE slightly higher on caliber 2
5-caliber 1 has less recoil caliber 2 encourages a brake more so
6-caliber 1 doesnt quite (very close though) measure up to caliber 2 on the KE but caliber 1 is less suceptable to wind drift and what not as it posses a smaller more narrow bullet design ultimately aiding to accuracy (which is the name of the game in the first place).
7-caliber 1 ultimatley matches up to caliber 2 and it does so with a smaller lighter bullet, with less felt recoil...
Here are some number that were previously posted:
1- 180 Hybrid, G7 BC .345, MV 2950
1000 yds Vel 1756, KE 1232, 5 MPH wind 4.5 MOA
2- 215 Hybrid. G7 BC .356. MV 2950
1000 yds Vel 1788, KE 1526, 5 MPH wind 4.4 MOA
I realize most guys will find what they like and defend it till the end but based on what facts i have gather in the above, trowing out either caliber specifically and looking at what is presented, what is your consensus. Isnt accuracy the underlying factor? Maybe its a aguruement of accuracy vs. energy to save your a$@ should your accuracy fail at 1000 yd. BUT....if you are accurate who needs the evergy right.....
southpa, I have no preferences. As stated earlier, the 300 WM would not be my first choice for the paramters you set, although I think it is capable and more capable than the 7 RM, (which I do own and have shot and taken many animals with) is .
IME, a 308 215 gr bullet is more than a slight advantage over a 7mm 180 bullet and at a 1000 yds on large game. I would take the advantage.
On recoil, both of my 7mms are sporters weighing about 8 lbs wth scope. When I did not use a slip on recoil pad, I was done after about 20 rounds of shooting max load 160's. A 300 WM will give you noticeably more recoil than the 7. My Senderos weigh 13 lbs with scope (NF), so I'm guessing
that a Sendero 300 WM will kick similar to a sporter 7 RM and the Sendero 7 will obviously kick less. Like I said, with a slip-on recoil pad, I can shoot a 300 RUM all day long. Without it, I would probably be done after 3-5 rounds even in a Sendero.
Accuracy is not a matter of caliber, It's a matter of rifle, load and shooter. My 300 RUM is quite accurate and I have shot numerous sub 1/2 MOA groups with it, even without a brake.
Any factory production line rifle you buy may or may not be a shooter. Senderos definitely do have a better track record. That said an off the shelf 300 WM might be a 1/2 MOA shooter while an off the shelf 7 might a 1 MOA shooter or vise versa.
If you go with the 7, it will be a fine rifle (probably - no guarantees from the factory) but it will be less capable in terms of terminal performance of your stated goal, than the 300 WM.
I have no dog in this fight. I do not own a 300 WM and will not be purchasing one. What you are getting from me is purely objective reasoning. The numbers are before you. In fact, I really don't care for belted cartridges period. But that is more a subjective view than objective.